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Submarine Warfare: What Were the U-boats?
By 1914 the submarine was not a new weapon, having first been used 150 years earlier. By the start of WW1 all the major ...
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Today in Aviation History: First Flight of the Junkers J.I
On this day in aviation history, January 28, 1917, the Junkers J.I made its first flight. Developed as the J 4 by the Junkers ...